QUALITY OF SEWAGE SLUDGE-DERIVED BIOCHAR FROM THE POINT OF ORGANIC POLLUTANTS AND PYROLYSIS PARAMETERS

0578777 - ÚCHP 2024 eng A - Abstract
Moško, Jaroslav - Hušek, Matěj - Pohořelý, Michael
QUALITY OF SEWAGE SLUDGE-DERIVED BIOCHAR FROM THE POINT OF ORGANIC POLLUTANTS AND PYROLYSIS PARAMETERS.
[Bio-Char III: Production, Characterization and Applications. Tomar, 17.09.2023-22.09.2023]
Method of presentation: Poster
R&D Projects: GA MZe(CZ) QK21020022
Grant - others:AV ČR(CZ) StrategieAV21/3
Program: StrategieAV
Institutional support: RVO:67985858
Keywords : sewage sludge * pyrolysis * organic pollutants
OECD category: Environmental sciences (social aspects to be 5.7)
https://engconf.us/bio-char-iii-production-characterization-and-applications/

The use of sewage sludge on soil is a much-debated issue, mainly due to the content of inorganic, organic, microbial pollutants, and microplastics. The safe use of sludge-derived biochar (sludge-char) on soil is also questioned, mainly because of the content of organic pollutants and the doubts about their removal in the pyrolysis process. The presentation will include the efficiency of removal of selected organic pollutants during pyrolysis of sewage sludge, which in some cases exceeds 99 % (depending on pyrolysis parameters). It will present the procedure for certification of sludge-char as a soil improver in the Czech Republic, which has already been successfully carried out in the case of the pyrolysis unit at the Bohuslavice - Trutnov WWTP. The presentation will also include a discussion on the influence of the moisture content of the treated sludge on the properties of pyrolysis products, which is often underestimated in laboratory experiments and can thus distort the results transferred to up-scale.

Permanent Link: https://hdl.handle.net/11104/0347692